The Ruger "six" line of revolvers are very easy to disassemble and work on. I bought the Wolf trigger spring and I get reduced power GP100 hammer springs (usually the 11lb or 12lb) and then just polish the internals with some Flitz and a felt bob on the Dremel. I have had great results this way for almost no $$$, compared to what a good 'smith would charge.
It is up to you, but my guess is you want a smoother trigger for carry or range work and are not trying to get a 100% super-sweet trigger for competition or something, so you may try the spring polish method yourself and save the $$$.